Lyon County, Minnesota · Frost dates
Lyon County frost dates.
First-frost, last-frost, and growing-season length for Lyon County, Minnesota. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: high · USDA zone: 4a
32°F — light freeze
Last spring frost
- 10%
- 05-18
- 20%
- 05-13
- 50%
- 05-05
- 80%
- 04-27
- 90%
- 04-21
First fall frost
- 10%
- 09-21
- 20%
- 09-25
- 50%
- 10-03
- 80%
- 10-12
- 90%
- 10-17
28°F — killing freeze
Last spring freeze
- 10%
- 05-09
- 20%
- 05-05
- 50%
- 04-27
- 80%
- 04-17
- 90%
- 04-12
First fall freeze
- 10%
- 09-30
- 20%
- 10-03
- 50%
- 10-13
- 80%
- 10-22
- 90%
- 10-26
Growing season length (days, 28°F threshold)
- Short year
- 144
- Median
- 169
- Long year
- 197
Source NOAA station
MARSHALL, MN US
5.2 mi · 30 yrs of record (1991–2020) · 1149 ft elev.
Data from MARSHALL, MN US, 5.2 miles away with 30-year NOAA record (1991-2020).
Bield Farm earns its predictions.
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